(1):

(n.) A kind of light, soft bread made with yeast and eggs, often toasted or crisped in an oven; or, a kind of sweetened biscuit.

(2):

(n.) A kind of light, hard cake or bread, as for stores.

(3):

(n.) Bread or cake which has been made brown and crisp, and afterwards grated, or pulverized in a mortar.